Method for installing elevator hardware in building and elevator lifting device

Abstract

There is disclosed a method for installing elevator hardware (108) in a building, in particular a building without a reinforced concrete cement (RCC) elevator shaft, the method comprising: setting up a temporary multi-foot stand (100) above an elevator opening (102) in a floor (104) of an upper floor of the building, the elevator opening (102) is vertically aligned with other elevator openings (102) in a floor slab (104) of a lower floor of the building, and a lifting channel (106) for the elevator is defined; connecting the temporary elevator (110) to the tripod (100); lifting the hardware (108) in the lifting channel using a temporary lifter (110) and positioning the hardware in the lifting channel (106); fastening the hardware (108) to the floor slabs (104) of different floors; and detaching the temporary elevator (110) and the tripod (100).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to elevators and, more particularly, to a method for installing elevator hardware in a building without the need for an integrated hoisting point and to an elevator hoisting arrangement. BACKGROUND

[0002] Typically, a building has a reinforced concrete cement (RCC) shaft for installing an elevator system. The elevator system can be installed from an elevator pit at the lower end of the elevator shaft to an overhead space at the upper end of the elevator shaft. During installation of the elevator, an installation platform can be incrementally moved upwards along the elevator shaft.

[0003] WO 2013 / 186096 Al describes a method and an installation system for installing hoisting components of a hoisting system in a vertical shaft of a building by means of the installation system, which can be moved in the shaft. The hoisting system has at least one cage, which can travel in the shaft along guide rails. The installation system, which is positioned in the shaft, comprises one support platform and an installation platform arranged one above the other and hoisting and pulling means. The support platform and the installation platform are alternately fixed in place in the shaft, and the platform not fixed in place at any one time is displaced in the vertical direction relative to the platform fixed in place by means of the hoisting and pulling means. The hoisting components need to be installed in the vertical shaft of the building, such as a RCC shaft. This greatly increases the overall construction cost of the building and leads to various disadvantages associated with the implementation of the RCC shaft for installing the elevator. Furthermore, in order to install the hoisting components in the vertical shaft, the support platform and the installation platform are needed to assist an assembler to install the hoisting components at different locations within the shaft. This greatly increases the overall complexity of the installation process. In fact, the time required for installation is also long. Furthermore, since the assembler is present within the RCC shaft, additional measures are needed to ensure the safety of the assembler when installing the elevator and the associated subcomponents.

[0004] A new type of elevator system is developed that does not require a RCC shaft to be installed in. However, in a building without a RCC shaft, it can not be possible to incrementally move the installation platform upwards, since there is no wall to fix the platform to.

[0005] Therefore, there is a need to simplify the installation of hardware for elevators, particularly in buildings that do not require a reinforced concrete cement (RCC) elevator shaft, thereby reducing or eliminating the above-mentioned associated disadvantages. SUMMARY

[0006] This need can be met, inter alia, by a method having the features of claim 1 and by an apparatus having the features of claim 14. Advantageous embodiments are defined in the dependent claims and in the description.

[0007] According to a first aspect, a method for installing elevator hardware in a building, in particular a building without a reinforced concrete cement (RCC) elevator shaft, is disclosed, the method comprising erecting a temporary trestle above an elevator opening in a floor of an upper floor of the building, the elevator opening being vertically aligned with other elevator openings in floors of other floors of the building, defining a hoisting passage for an elevator, connecting a temporary hoist to the trestle, hoisting elevator hardware in the hoisting passage and positioning the elevator hardware in the hoisting passage using the temporary hoist, fastening the elevator hardware to the floors of the different floors, and dismounting the temporary hoist and the trestle. The temporary hoist can comprise a drive for hoisting the hardware. For cable-based hoisting, the drive is exemplarily designed as a winch or a cable puller, the drive can in particular be a ring winch.

[0008] According to a second aspect, an elevator hoisting arrangement for a building, in particular a building without a reinforced concrete cement (RCC) elevator shaft, is disclosed, the arrangement comprising a support structure and a hoist, wherein the support structure comprises one of:

[0009] (i) a trestle, the trestle being temporarily erected above an elevator opening in a floor of an upper floor of the building, the elevator opening being vertically aligned with other elevator openings in floors of lower floors of the building, defining a hoisting passage for an elevator;

[0010] (ii) at least two elevator tracks, the at least two elevator tracks being permanently fastened to a bracket mounted to the floor, the tracks bridging the floor height of the not supported floor, and at least one cross member being positioned between and fastened to upper ends of the tracks,

[0011] wherein the support structure vertically extends beyond the floor of the upper floor of the building, and wherein the hoist is fixed to the support structure at a position above the level of the floor of the upper floor of the building.

[0012] The elevator hardware can in particular be stationary and permanently attached to the building. The hardware can for example comprise a bracket and tracks of the elevator.

[0013] Typically, a reinforced concrete cement (RCC) elevator shaft is formed by RCC walls and encloses an elevator hoisting passage. Landing doors of the elevator are arranged in door openings in the walls.

[0014] In the proposed method, the hoistway is not enclosed by the elevator shaft. The hoistway is formed by vertically aligned substantially similar elevator openings in the floor slabs of the connected floors. The elevator openings can be enclosed by the floor slabs on all sides. Alternatively, the elevator openings can be open to at least one side. The elevator openings can have a larger gap than the hoistway. The hoistway can terminate at the elevator pit at the lower end and at the overhead space at the upper end. The hoistway can be a clear space including the travel path for the moving components of the elevator. The moving components can be at least one car, at least one counterweight, and a traction member connecting the car and the counterweight. The hoistway can intersect all levels connected by the elevator.

[0015] The floor slab can be the main body of the RCC having an upper surface forming a floor of a level of the building and a lower surface forming a ceiling of a lower level.

[0016] For example, the hoisting equipment can be a spider. The spider can have a plurality of legs. The head ends of all legs can be connected at a top end of the spider. In the erected state, the foot ends of the legs can be spread out. The angles between the legs can be fixed or variable. For example, at least one movable joint can be arranged at the top end. To erect the spider, the legs can be spread out and the foot ends can be placed around the elevator opening, thereby placing the top end more or less centrally above the elevator opening. The spider can be referred to as a scissors leg. For example, the spider can be a tripod having three legs or a quadruped having four legs.

[0017] The spider can have an interface for the hoisting machine. The hoisting machine can be arranged at the top end, at a leg of the spider, or between two legs of the spider. The hoisting machine can also be arranged next to the elevator opening. If the hoisting machine is arranged next to the top end, a pulley can be arranged at the top end.

[0018] The hoisting equipment can alternatively consist of the tracks of the elevator and at least one cross member traversing the elevator opening between the tracks. The interface of the hoisting machine can also be arranged on the cross member.

[0019] The hoisting machine can be referred to as a winch. The hoisting machine can have a rotating drum to move a suspension and a traction means, such as a rope, a belt, or a cable. The drum can be a storage for winding the rope, belt, or cable. The drum can also be an anchor windlass or a hoist.

[0020] The tracks of the elevator can be lifted upwards along the lifting passage and positioned relative to the support. The support can be mounted to the floor. The support can be lifted before the tracks. The tracks can be fastened to the support. The tracks can bridge the floor height of the floor not being supported. During the lifting, the tracks can be pulled near one end. The tracks can be moved from a horizontal orientation outside the lifting passage to a vertical orientation inside the lifting passage. The tracks can be fastened without entering the lifting passage, since the RCC walls of the building do not block the access to the lifting passage.

[0021] The at least two tracks can be lifted upwards along the lifting passage until the upper ends of the tracks are positioned to extend vertically over the floor on which the spider arrangement is arranged. The tracks can be fastened in this position. At least one cross member can be positioned between and fastened to the upper ends. The cross member can provide a permanent service lifting point for the elevator service. The permanent service lifting point can enable convenient service of the elevator during operation of the elevator. The permanent service lifting point can have a higher load capacity than the spider. In particular, the permanent service lifting point can have about twice the load capacity of the spider. The cross member can be a beam. The cross member can be made of metal. In particular, the cross member can be made of steel. The cross member can have an I- or T-shape. The cross member can have holes, hooks or eyelets to suspend pulleys. The cross member can also have a gin wheel and / or an interface for a hoist. The interface can preferably be a fixed point, which can comprise, for example, an eyelet in which a hook can be received. The cross member can be positioned across the elevator opening. The cross member can span the elevator opening. The cross member can be arranged between the tracks after the tracks are fastened to the support and the foundation of the elevator. The tracks can support the cross member and the load transferred from the cross member to the tracks into the foundation. The permanent service lifting point can be arranged approximately centrally above the lifting passage.

[0022] The permanent service lifting point for the elevator service can also be used in a method for modernizing an elevator installation. Since elevator installations are relatively long-term capital cost items with a service life of 20 years and more, it can occur over time that they no longer meet changing requirements or need to be upgraded for other reasons. In certain cases, it is necessary to modernize the installation. By the term "modernization", it is to be understood hereinafter not only the replacement of technically aging components. Modernization also means, inter alia, the reconstruction or redesign of existing installations and thereby the adaptation of these installations to new requirements. By modernization, the lifting installation can be operated, for example, more safely, more efficiently, more comfortably for the user and / or more advantageously for the operator. For example, old elevator cars are replaced by new cars. The permanent service lifting point for the elevator service can therefore advantageously be used in such a method for modernizing an elevator installation. In such a method, it is not necessarily necessary to use the above-mentioned temporary spider and the temporary hoist.

[0023] The upper end can be positioned higher than the top of the multi-legged stand. The tracks can extend substantially to the ceiling of the headroom space of the elevator. In this way, there can be enough space for maintenance of the elevator.

[0024] The at least three tracks can be raised upwards along the hoistway until their upper ends extend beyond the floor with the multi-legged stand. The two cross members can be positioned in a T-shape. The ends of the T-shape can be fastened to the upper ends of the three tracks. The service hoistway can be arranged on the bar of the T-shape. The bar can be attached to the center of the other cross member. In this way, the bar intersects the center of the hoistway. The permanent service hoistway can be arranged in the center of the hoistway.

[0025] Fixing points can be attached on the bar, including for example eyelets for permanent service hoistways of elevator services.

[0026] The at least three tracks can be raised upwards along the hoistway until their upper ends extend beyond the floor with the multi-legged stand. The three cross members can be arranged as the sides of a triangle. The corners of the triangle can be fastened to the upper ends of the three tracks. The triangle can laterally stabilize the tracks. The triangle can provide high structural integrity. The triangle can be unaffected by warping.

[0027] A T-shape can be arranged within the triangle. One of the cross members of the T-shape can be one side of the triangle. The three cross members can converge at one track. The triangle can provide lateral stability. The T-shape can provide vertical load transfer. By combining the triangle and the T-shape, the permanent service hoistway is very robust.

[0028] The meeting point of the two cross members of the T-shape can be fastened to the upper end of a fourth track. The fourth track can support a portion of the vertical load and can be laterally stabilized by being connected to the cross members.

[0029] An elevator drive can be fastened to the upper end of one of the tracks. This track can in particular be the fourth track. The track supports the vertical load of the drive. In order to move the elevator car, said drive is provided, preferably in the form of a drive pulley drive or drum drive, which in particular comprises a traction sheave connected to a drive motor or a drum driven by the motor, wherein the motor and the sheave / drum are preferably configured as an integral unit.

[0030] The disassembled hoistway and the multi-legged stand can be lowered down the hoistway using the permanent service hoistway. After the permanent service hoistway has been built, the temporary multi-legged stand and the temporary hoistway can no longer be needed and can easily be lowered down the hoistway from the permanent service hoistway.

[0031] The spider can be erected on a reinforced crossbeam arranged around the elevator opening. The crossbeam can be a specially reinforced frame around the elevator opening. The crossbeam is configured to support high loads. Placing the spider on the crossbeam ensures that the lifted load is safely transferred into the building.

[0032] The spider can be erected on a horizontal surface of a floor around the elevator opening. There can be no walls around the elevator opening. The horizontal surface of the floor can be oriented transverse to the load direction. The spider can have high stability on the horizontal surface.

[0033] The spider can be erected above the elevator opening of the topmost floor of the building. The spider can be erected near the top of a multi-story building. By erecting the spider on the topmost floor, the entire hoistway can be accessed from the spider.

[0034] The term "floor" refers to a structural feature that typically has a constant thickness, which can be formed using concrete (and typically steel reinforcement), and which can form part of the structure of a building. The floor refers to the structural feature that defines each floor / level of a building except for the lowest floor (i.e., the floor at the lowest level of the building). The top surface of the floor can be referred to as a floor and the bottom surface of the floor can be referred to as a roof or ceiling.

[0035] The term "elevator pit" refers to an enclosed space formed below the lowest floor (i.e., the floor at the lowest level of the building).

[0036] The term "elevator opening" refers to a through-hole formed between the top surface of a floor and the bottom surface of a floor.

[0037] The term "horizontal surface" of a floor refers to the top surface or the bottom surface of the floor.

[0038] The term "hoistway" refers to a passageway that extends through the elevator opening of each floor from the topmost floor of the building to the lowest floor of the building.

[0039] Additional advantages, features and details of the application will be obtained from the following description of the example embodiments, and using the accompanying drawings, in which the same or similar elements are provided with the same reference numerals.

[0040] In order to further clarify the advantages and features of the present application, a more particular description of the application will be rendered by reference to specific embodiments thereof, which are illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the application and are therefore not to be considered limiting of its scope. The application will be described and explained with additional specificity and detail through the use of the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] These and other features, aspects, and advantages of the present application will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

[0042] Figure 1 A partial perspective view of a spider used in a method of installation according to an embodiment of the present disclosure is shown;

[0043] Figure 2 A perspective view of a permanent service riser point used in a method of installation according to an embodiment of the present disclosure is shown; and

[0044] Figure 3 A perspective view of a permanent service riser point used in a method of installation according to another embodiment of the present disclosure is shown.

[0045] Further, those skilled in the art will appreciate that the elements in the figures are illustrated for simplicity and clarity and that the actual implementation can be of a different composition and form. For example, one or more of the components of the device can have been represented by conventional symbols in the drawings, and the drawings can show only those specific details that are necessary to appreciate the embodiments of the present application described herein, so as not to obscure the application with details that will be readily apparent to those skilled in the art having benefit of the description herein. DETAILED DESCRIPTION

[0046] In order to facilitate an understanding of the principles of the present application, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe the same. It will, nevertheless, be understood that no limitation of the scope of the application is intended by this use of specific language, and that changes and further modifications can be made by those skilled in the art that will be readily apparent to those skilled in the art having benefit of the teachings hereof. The language used is merely descriptive of illustrative embodiments of the applications, which have legal precedence over any contradictory language of a patent term or claim. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The systems, methods, and examples provided herein are illustrative only and not intended to be limiting.

[0047] The term "some" as used herein is defined as "none, or one, or more than one, or all." Thus, the terms "none," "one," "more than one," "more than one, but not all," or "all" will all fall within the definition of "some." The term "some embodiments" can refer to no embodiments or one embodiment or several embodiments or all embodiments. Thus, the term "some embodiments" is defined as meaning "none, or one, or more than one, or all embodiments."

[0048] The terminology and structure employed herein is used to describe, teach and illustrate some embodiments and specific features and elements thereof, and is not intended to limit, restrict or reduce the spirit and scope of the claims or equivalents thereof.

[0049] More specifically, as used herein, any terms such as "comprises", "comprising", "includes", "including", "has", "having", "consists" and "consisting", as well as any variations thereof, does not specify an exact numerical limitation or restriction or, of course, exclude the possibility of addition of one or more features or elements, unless otherwise stated; and furthermore must not be considered to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated with the limiting language "does not comprise" or "requires not comprising".

[0050] Whether or not a certain feature or element is limited to be used only once, it can still be referred to as "one or more features" or "one or more elements" or "at least one feature" or "at least one element". Furthermore, the use of the term "one or more" or "at least one" features or elements does not exclude the possibility of having no such feature or element, unless otherwise stated by limiting language such as "one or more of the features is required" or "one or more elements are mandatory".

[0051] Unless otherwise defined, all terms used herein, in particular any technical and / or scientific terms, can be considered as having the same meaning as commonly understood by one of ordinary skill in the art.

[0052] Reference is made herein to some "embodiments". It is to be understood that embodiments are examples of possible implementations of any of the features and / or elements presented in the appended claims. Some embodiments have been described for the purpose of clarifying the manner in which one or more potential ways of satisfying the requirements of novelty, utility, and non-obviousness of the particular features and / or elements presented in the appended claims have been described.

[0053] The use of phrases and / or terms such as, but not limited to, "first embodiment", "further embodiment", "alternative embodiment", "one embodiment", "embodiment", "embodiments", "some embodiments", "other embodiments", "further embodiments", "furthermore embodiments", "additional embodiments" or variations thereof does not necessarily refer to the same embodiment. Unless otherwise stated, one or more particular features and / or elements described in connection with one or more embodiments can be found in one embodiment, or can be found in more than one embodiment, or can be found in all embodiments, or can not be found in any embodiment. Although one or more features and / or elements can be described herein only in the context of a single embodiment, or alternatively in the context of more than one embodiment, or further alternatively in the context of all embodiments, the features and / or elements can alternatively be provided separately or in any suitable combination or not provided at all. Conversely, any features and / or elements described in the context of separate embodiments can alternatively be implemented together in the context of a single embodiment.

[0054] Any particular and all details set forth herein are used in the context of some embodiments and therefore should not be taken as limiting factors for the appended claims. The appended claims and their legal equivalents can be implemented in embodiments other than those described below as illustrative examples.

[0055] Embodiments of the present application will be described in detail below with reference to the attached drawings.

[0056] Figure 1 A perspective view of a spider 100 used in a method of installation according to an embodiment of the present disclosure is shown. The spider 100 can be referred to as a lifting device. The spider 100 is temporarily erected over an elevator opening 102 in a floor 104 of a multi-story building. In particular, the elevator opening 102 is the topmost elevator opening 102 of the building. The elevator opening 102 is vertically aligned with lower elevator openings 102 on other stories of the building. The elevator opening defines a hoistway 106 for an elevator. The hoistway 106 is not enclosed by reinforced concrete cement (RCC) walls of the elevator shaft. Hardware 108 of the elevator is specially installed to the floor 104 around the elevator opening 102. The floor 104 is reinforced around the elevator opening 102 to withstand the additional load transferred to the floor 104 by the hardware 108.

[0057] A temporary hoist 110 is used with the spider 100 to hoist the hardware 108 up the hoistway 106. The hoist 110 can be arranged on the spider 100 or can be fastened to the floor 104. Here, the hoist 110 is on the floor and a pulley 112 is connected to a top end 114 of the spider 100. Tracks and supports are hoisted up the hoistway by ropes extending over the pulley 112 to the hoist 110. After the hardware 108 is installed in the hoistway 106, the spider 100 is disassembled.

[0058] The spider 100 can have three or more legs 116. The legs 116 are connected at a top end 114 of the spider 100. The top end 114 is arranged generally above the center of the elevator opening 102. The legs 116 angle downward from the top end and rest on an upper surface of the floor 104 outside the elevator opening 102. The legs 116 curve at where they reach the surface. The curve forms a foot 118 for each leg 116. The foot 118 is oriented away from the elevator opening 102 and is aligned generally parallel to the surface.

[0059] Here, the spider 100 has four legs 116. The legs 116 are arranged in a cross shape. Each foot 118 rests on the floor 104 behind one of the four corners of the elevator opening 102. The spider 100 is made of metal profiles. The profiles have different cross sections. Two legs 116 are made of U-shaped profiles and two legs 116 are made of rectangular tubes.

[0060] After the hardware 108 is fastened to the building, the hoist 110 and the outriggers are disassembled and lowered along the hoistway 106.

[0061] Figure 2 A perspective view of a permanent service hoist point 200 according to an embodiment of the disclosure is shown. The permanent service hoist point 200 can also be referred to as a hoist equipment. The permanent service hoist point 200 is built using the outriggers in Figure 1 To construct the permanent service hoist point 200, the tracks 202 of the elevator are raised above the surface of the floor 104 so that the tracks protrude above the surface. Cross members 204 are arranged between the protruding tracks 202. The permanent service hoist point 200 is arranged on one of the cross members 204 near the center of the hoistway 106. The permanent service hoist point 200 stays permanently in the building.

[0062] The outriggers and the hoist of the elevator are disassembled from the permanent service hoist point 200 and lowered through the hoistway 106. The outriggers and the hoist can be reused to construct another elevator. Figure 1

[0063] In one embodiment, the cross members 204 are arranged in a T-shape. Each of the three ends 206 of the T-shape is connected to one track 202. Two of the tracks 202 are on one side of the hoistway 106 and the third track 202 is arranged on the opposite side of the hoistway 106. The two tracks 202 on one side are the tracks 202 for the counterweight of the elevator, and the one track 202 on the other side is one of the tracks 202 for the car (not shown) of the elevator. The permanent service hoist point 200 is arranged on a bar 208 of the T-shape that extends across the hoistway 106.

[0064] A hitch point can be formed on the top of a guide track and supported by the guide track. This method can be used where the hitch point is not installed correctly or is not available.

[0065] In one embodiment, two additional cross members 204 are arranged between the tracks 202. The additional cross members 204 connect one of the counterweight tracks 202 directly to the car tracks 202. The additional tracks 202 and the bar 208 converge at the car tracks 202. The cross members 204 form a triangle, with the bar 208 extending down the centerline of the triangle. The triangle stabilizes the extended ends 206 of the tracks 202 in the horizontal direction. The T-shape spreads the load on the permanent service hoist point 200 over all three tracks 202.

[0066] Figure 2 ​An elevator drive 210 in the form of a pulley drive or a roller drive is also shown. The elevator drive 210, used for the final elevator, can move the car up and down along vertical tracks, and typically moves both the car and the counterweight. Therefore, the elevator can include two loads that can be transported by a traction device: the car and, possibly, the counterweight. Cable-like traction devices (cables), chain-like traction devices, and, more recently, increasingly, belt-like traction devices (traction belts) are currently being considered as traction devices for mechanical drives. The elevator drive 210 is secured to one end 206 of one of the tracks 202 of the elevator.

[0067] In an alternative embodiment, a winch (not shown) for the permanent service lift point 200 may be secured to one end 206 of one of the tracks in the elevator's tracks 202. The winch has a motor and drums for winding cables or ropes. Cables or ropes for service purposes may be guided to pulleys at the permanent service lift point 200.

[0068] Figure 3 A perspective view of a permanent service elevation point 200 according to another embodiment of the present disclosure is shown. This permanent service elevation point 200 substantially corresponds to... Figure 2 Permanent service improvement points.

[0069] Here, the elevator's fourth rail 202 also extends beyond the floor slab 104 and connects to the transverse member 204, where the rod 208 merges with the T-shaped transverse member 204. The fourth rail bears a portion of the load distributed by the transverse member 204 and is maintained laterally stable by the transverse member 204. The fourth rail 202 is the opposite rail 202 for the elevator car. The fourth rail 202 is centrally located between the two rails 202 used for the counterweight.

[0070] from Figure 3 As can be seen, the fixing points formed by the eyelets are arranged on the T-shaped rod 208. A hook (not shown) can be received within this eyelet for suspending cables or ropes, for example, suspending the car from the permanent service lifting point 200. For elevator service, the cables or ropes can be driven by a loop winch. For example, a so-called "Tirak" can be used as a loop winch.

[0071] In another embodiment, a cable pulley (not shown) may be arranged on a T-shaped rod 208. The cable pulley is a fixed pulley for suspending cables or ropes from a permanent service lifting point 200. The cable pulley may, for example, be arranged in a slit (not shown) in the transverse member 204.

[0072] While the present subject matter has been described using a particular language, it is to be understood that this language is for the purpose of better conveying the subject matter and not for limiting the subject matter. Various modifications can be made to the method as will be obvious to those skilled in the art, in order to implement the inventive concepts as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements can well be combined into a single functional element. Alternatively, certain elements can be split into multiple functional elements. Elements from one embodiment can be added to another embodiment.

Claims

1. A method for installing elevator hardware (108) in a building, particularly a building without reinforced concrete (RCC) elevator shafts, the method comprising: A temporary scaffold (100) is erected above the elevator opening (102) in the upper floor slab (104) of the building, the elevator opening (102) being vertically aligned with other elevator openings (102) in the lower floor slab (104) of the building, defining a lifting channel (106) for the elevator. Connect the temporary hoist (110) to the multi-leg (100). The temporary hoist (110) is used to lift the elevator hardware (108) in the hoisting channel (106) and to position the elevator hardware (108) in the hoisting channel (106); Secure the elevator hardware (108) to the floor slabs (104) of different floors; and Disassemble the temporary hoist (110) and the multi-leg (100).

2. The method according to claim 1, wherein, The elevator track (202) is lifted upward along the lifting channel (106) and positioned relative to a bracket mounted to the floor slab (104), wherein the track (202) is fastened to the bracket, bridging the floor height of the unsupported floor.

3. The method according to any one of claims 1 to 2, wherein, At least two tracks (202) of the elevator are raised upward along the lifting channel (106) until the upper end (206) of the track (202) is positioned to extend vertically beyond the upper floor slab (104) and secured in that position, wherein at least one transverse member (204) is positioned between the upper ends (206) and secured to the upper ends (206), providing a permanent service lift point (200) for elevator service.

4. The method according to claim 3, wherein, The upper end (206) is positioned above the top of the tripod (100).

5. The method according to any one of claims 3 to 4, wherein, Two transverse members (204) are positioned in a T-shape and the ends of the T-shape are fastened to the upper end (206) of the track (202), wherein the service lift point (200) is arranged on the rod (208) of the T-shape.

6. The method according to any one of claims 3 to 5, wherein, The three transverse members (204) are arranged as the sides of a triangle, and the corners of the triangle are fastened to the upper end (206) of the track (202).

7. The method according to claims 5 and 6, wherein, The T-shaped shape is arranged within the triangle, wherein one of the transverse members (204) of the T-shaped shape is a side of the triangle.

8. The method according to any one of claims 5 or 7, wherein, The meeting point of the two transverse members (204) of the T-shape is fastened to the upper end (206) of the fourth track (202).

9. The method according to any one of claims 1 to 8, wherein, Secure the elevator drive (210) to the upper end (206) of the track (202).

10. The method according to any one of claims 3 to 9, wherein, The dismantled hoist (110) and tripod (100) are lowered down along the lifting channel (106) using the permanent service lift point (200).

11. The method according to any one of claims 1 to 10, wherein, The multi-legged structure (100) is erected on a reinforced crossbeam arranged around the elevator opening (102).

12. The method according to any one of claims 1 to 11, wherein, The tripod (100) is erected on the horizontal surface of the floor slab (104) surrounding the elevator opening (102).

13. The method according to any one of claims 1 to 12, wherein, The tripod (100) is erected above the elevator opening (102) at the very top of the building.

14. An elevator lifting device for a building, particularly a building without reinforced concrete (RCC) elevator shafts, the elevator lifting device comprising: Support structure; and Hoist, The supporting structure includes one of the following: (i) A multi-leg (100) is temporarily erected above an elevator opening (102) in the upper floor slab (104) of the building, the elevator opening (102) being vertically aligned with other elevator openings (102) in the lower floor slab (104) of the building, defining a lifting channel (106) for the elevator. (ii) At least two elevator rails (202) are permanently secured to brackets mounted to the floor slab (104), the rails (202) bridging the floor height of unsupported floors, and at least one transverse member (204) is positioned between and secured to the upper ends (206) of the rails (202). The supporting structure extends vertically beyond the upper floor slab (104) of the building, and the hoist (110) is fixed to the supporting structure at a position horizontally above the height of the upper floor slab (104) of the building.

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